17
T
ROUBLESHOOTING
E
LECTROSTATIC
D
ISCHARGE
(ESD) P
RECAUTIONS
NOTE:
Discharge body’s static electricity before touching
unit. An electrostatic discharge can adversely affect electrical
components.
Use the following precautions during air handler installation
and servicing to protect the integrated control module from
damage. By putting the air handler, the control, and the per-
son at the same electrostatic potential, these steps will help
avoid exposing the integrated control module to electrostatic
discharge. This procedure is applicable to both installed and
uninstalled (ungrounded) blowers.
1. Disconnect all power to the blower. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body’s electrostatic
charge to ground.
2. Firmly touch a clean, unpainted, metal surface of the air
handler blower near the control. Any tools held in a
person’s hand during grounding will be discharged.
3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution
not to recharge your body with static electricity; (i.e., do
not move or shuffle your feet, do not touch ungrounded
objects, etc.). If you come in contact with an ungrounded
object, repeat step 2 before touching control or wires.
4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a blower. Return any old or
new controls to their containers before touching any
ungrounded object.
D
IAGNOSTIC
C
HART
HIGH VOLTAGE!
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DISCONNECT
ELECTRICAL
POWER
BEFORE
PERFORMING
ANY
SERVICE
OR
MAINTENANCE
.
WARNING
Refer to the
Troubleshooting Chart
at the end of this manual
for assistance in determining the source of unit operational
problems. The 7 segment LED display will provide any ac-
tive fault codes. An arrow printed next to the display indi-
cates proper orientation (arrow points to top of display). See
following image.
7 Segment
Diagnostic
Display
Heat Kit Selection
Model
HKSX
03XC
HKSX
05XC
HKSX
06XC
HKSX
08XC
HKSX
10XC
HKSC
05XC
HKSC
08XC
HKSC
10XC
HKSC
15XA
HKSC
15XB
HKSC
15XF
HKSC
19CA
HKSC
19CB
HKSC
20DA
HKSC
20DB
HKSC
20XF
HKSC
25DC
AVPTC24B14
X
X
X
X
X
X
X
X
AVPTC30C14
X
X
X
X
X
X
X
X
AVPTC36C14
X
X
X
X
X
X
X
X
X
X
X
X
X
AVPTC48C14
X
X
X
X
X
X
X
X
X
X
X
X
X
AVPTC42D14
X
X
X
X
X
X
X
X
X
X
X
X
X
AVPTC48D14
X
X
X
X
X
X
X
X
X
X
X
X
X
X
AVPTC60D14
X
X
X
X
X
X
X
X
X
X
X
X
X
X
C Circuit breaker o ptio n
